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    • 8. 发明授权
    • Layered diaphragm pressure sensor with connecting channel
    • 具有连接通道的分层隔膜压力传感器
    • US5583296A
    • 1996-12-10
    • US436251
    • 1995-05-17
    • Wilfried MokwaMichael KandlerJorg Amelung
    • Wilfried MokwaMichael KandlerJorg Amelung
    • G01L9/12G01L7/08G01L9/00G01L13/06G01L15/00H01L29/84
    • G01L9/0073G01L15/00G01L9/0042
    • A pressure sensor comprises a substrate and a layer defining together with said substrate a pressure sensor cavity, said layer including a diaphragmlike area which is adapted to be acted upon by an external pressure. A micro-miniaturizable pressure sensor of the above-mentioned type, which is used for differential pressure measurement or for relative pressure measurement, is provided on the basis of the features that said cavity is followed by a channel which extends along the surface of said substrate, said channel comprising a layered structure including also the layer which also defines the diaphragmlike area of the pressure sensor, the ratio of the width of the channel to the thickness of the layered structure above the channel being smaller than the ratio of the smallest extension of the diaphragmlike area in the diaphragm plane to the thickness of the diaphragmlike area.
    • PCT No.PCT / DE93 / 00048 Sec。 371日期1995年5月17日 102(e)日期1995年5月17日PCT提交1993年1月19日PCT公布。 WO94 / 17383 PCT出版物 日期1994年8月4日压力传感器包括衬底和与所述衬底一起限定压力传感器腔的层,所述层包括适于被外部压力作用的隔膜区域。 上述类型的微小型压力传感器用于差压测量或相对压力测量,是基于所述腔体沿着沿着所述衬底的表面延伸的通道的特征而提供的 所述通道包括层叠结构,该结构还包括也限定压力传感器的隔膜区域的层,沟道宽度与通道上方的分层结构的厚度的比率小于通道的最小延伸比 隔膜平面上的隔膜面积与隔膜面积的厚度。
    • 9. 发明授权
    • Apparatus for checking audio signal processing systems
    • 用于检查音频信号处理系统的装置
    • US5014318A
    • 1991-05-07
    • US439394
    • 1989-10-25
    • Hartmut SchottDieter SeitzerHeinz GerhauserKarlheinz BrandenburgErnst EberleinStefan KragelohRolf KapustHarald Popp
    • Hartmut SchottDieter SeitzerHeinz GerhauserKarlheinz BrandenburgErnst EberleinStefan KragelohRolf KapustHarald Popp
    • G10L11/00G10L21/02G11B20/18H04B14/04H04H20/88
    • H04H20/88H04B14/04
    • Disclosed is an apparatus for checking audio signal processing systems. The apparatus has the following features:the apparatus is provided with a first input connection, to which the input signal of the audio processing system to be checked is transmitted, a second input connection, to which the output signal of said system is transmitted, and a signal processor.said signal processor ascertains the signal delay time of said system to be checked by means of correlating said signals received at said two input connections,said signal processor always composes the difference signal from said signal received at said first input connection during a specific time span and said signal received at said second input connection, lagging by the signal delay time,said signal processor ascertains the spectral composition of said signal received at said first input connection during said specific time span and of said respective difference signal,said signal processor ascertains the hearing threshold of the human ear from said spectral composition and compares the ascertained hearing threshold with the respective difference signal.
    • PCT No.PCT / DE89 / 00110 Sec。 371日期:1989年10月25日 102(e)日期1989年10月25日PCT提交1989年2月25日PCT公布。 公开号WO89 / 08357 日期为1989年9月8日。公开是用于检查音频信号处理系统的装置。 该装置具有以下特征:该装置具有第一输入连接,待检查的音频处理系统的输入信号被发送到该第一输入连接,传输所述系统的输出信号的第二输入连接;以及 信号处理器。 所述信号处理器通过将在所述两个输入连接处接收到的所述信号相关来确定要检查的所述系统的信号延迟时间,所述信号处理器总是在特定时间跨度期间组合来自在所述第一输入连接处接收的所述信号的差信号, 所述信号在所述第二输入连接处被接收,滞后于所述信号延迟时间,所述信号处理器确定在所述特定时间跨度期间在所述第一输入连接处接收到的所述信号的频谱组成以及所述各个差分信号,所述信号处理器确定听觉 阈值,并将所确定的听力阈值与相应的差分信号进行比较。